fix(dnd): leave event handlers should expect None as the drag Id

Author: wash2

src/widget/dnd_destination.rs

@@ -241,6 +241,11 @@ impl<'a, Message: 'static> DndDestination<'a, Message> {
             Internal::Set(_) => panic!("Invalid Id assigned to dnd destination."),
         }))
     }
+
+    pub fn id(mut self, id: Id) -> Self {
+        self.id = id;
+        self
+    }
 }
 
 impl<Message: 'static> Widget<Message, crate::Theme, crate::Renderer>
@@ -354,8 +359,12 @@ impl<Message: 'static> Widget<Message, crate::Theme, crate::Renderer>
                 }
                 return event::Status::Captured;
             }
-            Event::Dnd(DndEvent::Offer(id, OfferEvent::Leave)) if id == Some(my_id) => {
-                state.on_leave(self.on_leave.as_ref().map(std::convert::AsRef::as_ref));
+            Event::Dnd(DndEvent::Offer(id, OfferEvent::Leave)) => {
+                if let Some(msg) =
+                    state.on_leave(self.on_leave.as_ref().map(std::convert::AsRef::as_ref))
+                {
+                    shell.publish(msg);
+                }
 
                 if self.forward_drag_as_cursor {
                     let drag_cursor = mouse::Cursor::Unavailable;
@@ -403,7 +412,7 @@ impl<Message: 'static> Widget<Message, crate::Theme, crate::Renderer>
                 }
                 return event::Status::Captured;
             }
-            Event::Dnd(DndEvent::Offer(id, OfferEvent::LeaveDestination)) if id == Some(my_id) => {
+            Event::Dnd(DndEvent::Offer(id, OfferEvent::LeaveDestination)) => {
                 if let Some(msg) =
                     state.on_leave(self.on_leave.as_ref().map(std::convert::AsRef::as_ref))
                 {

src/widget/segmented_button/widget.rs

@@ -733,9 +733,8 @@ where
                         entity,
                     );
                 }
-                DndEvent::Offer(id, OfferEvent::Leave | OfferEvent::LeaveDestination)
-                    if Some(my_id) == *id =>
-                {
+                DndEvent::Offer(id, OfferEvent::LeaveDestination) if Some(my_id) != *id => {}
+                DndEvent::Offer(id, OfferEvent::Leave | OfferEvent::LeaveDestination) => {
                     if let Some(Some(entity)) = entity {
                         if let Some(on_dnd_leave) = self.on_dnd_leave.as_ref() {
                             shell.publish(on_dnd_leave(entity));

src/widget/text_input/input.rs

@@ -1995,10 +1995,12 @@ pub fn update<'a, Message: Clone + 'static>(
             return event::Status::Ignored;
         }
         #[cfg(feature = "wayland")]
+        Event::Dnd(DndEvent::Offer(id, OfferEvent::LeaveDestination)) if Some(dnd_id) != id => {}
+        #[cfg(feature = "wayland")]
         Event::Dnd(DndEvent::Offer(
             rectangle,
             OfferEvent::Leave | OfferEvent::LeaveDestination,
-        )) if rectangle == Some(dnd_id) => {
+        )) => {
             cold();
             let state = state();
             // ASHLEY TODO we should be able to reset but for now we don't if we are handling a